Ajax is a kitchen cleaner and should not be used on your hair or skin. If you wish to bleach your hair buy a product which has been made for that purpose.
The only thing that Isopropyl, or rubbing alcohol will do to the hair is extremely dry it out if applied. The same affect will occur if an alcoholic beverage is applied as well.
You mix hydrogen peroxide and bleach equally by mixing it using the correct ratio.After you have determined how light you want your hair you need to use the correct hydrogen peroxide volume, such as...